so it's very hard to envision a mood dell of the economy in which big austerity would not penalize the growth rate in the u.s. but we know long run looking out ten, 20 years from now that we're going to have to address these issues that come from the aging of the population and what we're trying to figure out is when is it that we should start thinking about long run versus short run? that's not easy to answer. >> rose: when you look at the growth, what's necessary now to create the kind of growth that's necessary for our economy to be able to deal with the issues we face in start. >> in a way i think it's -- there's an obvious though not easy solution to that. over the ten years preceding the big recession, we got heavily focused on residential investment and consumer spending faster than income and we were very light on export growth. we were very light on capital investment and that's what we have to -- we have to shift to doing more of that. it's likely to mean sectors like manufacturing will do better than they have been doing in the recent experience but that transformation invol